<?php

$a = '123';
$b = '222';
echo "\n\n";
echo $a + $b; // 345
echo "\n\n";
$a = '123';
echo $a * 2 ; //246
echo "\n\n";
$a = '123abc';
echo $a * 2 ; //246
echo "\n\n";
$a = '123abc123';
echo $a * 2 ; //246
echo "\n\n";

